Gun



FIG. 1 is a left side elevational view of a gun, showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a left side perspective thereof; and

FIG. 8 is a right side perspective thereof. 

The ornamental design for a gun, as shown and described. 